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vocab words

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
solid   definite shape and a definite volume.  
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liquid   definite shape and no definite voulme.  
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gas   no definite shape and no definite volume.  
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kinetic energy   energy in an object due to its motion.  
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phase change   a reversible physical change that occurs when a substance changes from one state of matter to another.  
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endothermic   a change in which a system absorbs energy from its surroundings.  
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heat of fusion   energy a substance must absorb in order to change from solid to a liquid.  
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exothermic   change in which a system releases energy to its surroundings.  
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vaporization   phase change in which a substance changes from a liquid into a gas.  
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heat of vaporization   energy a subustance must absorb in order to change from a liquid to a gas.  
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evaporation   process that changes a substance from a liquid to a gas at the temperatures below the substances boiling point.  
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vapor pressure   pressure caused by the collisions of particles in a vapor with the walls of a container.  
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condensation   phase change in which a substance changes from a gas or vapor to a liquid.  
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sublimation   phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first.  
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deposition   phase change in which a gas or vapor changes directly into a solid without it first changing into a liquid first.  
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